/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package cn.net.greenet.dpi.users.group.brasip;

import cn.net.greenet.db.HibernateUtil;
import cn.net.greenet.db.bean.UgBrasip;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;

/**
 *
 * @author Administrator
 */
@WebServlet(name = "cn.net.greenet.dpi.users.group.brasip.servlet.ListService", urlPatterns = {"/dpium/group/brasip/list"})
public class List extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        String iDisplayStart = request.getParameter("iDisplayStart");
        String iDisplayLength = request.getParameter("iDisplayLength");
        String groupId = request.getParameter("groupId");

        PrintWriter out = response.getWriter();
        SessionFactory sf = HibernateUtil.getSessionFactory();
        Session session = sf.openSession();

        try {
            UgBrasip bean = null;
            Query q = session.createQuery("SELECT uu FROM UgBrasip AS uu where uu.dpiusergroup.id=:groupId");
            q.setParameter("groupId", Integer.parseInt(groupId));
            q.setMaxResults(Integer.parseInt(iDisplayLength));
            q.setFirstResult(Integer.parseInt(iDisplayStart));

            java.util.List<UgBrasip> l = q.list();
            JSONObject json = new JSONObject();
            JSONArray result = new JSONArray();
            Query countQuery = session.createQuery("SELECT count(*) FROM UgBrasip where dpiusergroup.id=:groupId");
            countQuery.setParameter("groupId", Integer.parseInt(groupId));
            int length = ((Long) countQuery.iterate().next()).intValue();
            json.put("iTotalRecords", length);
            json.put("iTotalDisplayRecords", length);
            int end = Integer.parseInt(iDisplayStart) + Integer.parseInt(iDisplayLength);
            if (end > length) {
                end = length;
            }
            for (int i = 0; i < l.size(); i++) {
                bean = (UgBrasip) l.get(i);
                JSONArray one = new JSONArray();
                one.add(bean.getId());
                one.add(bean.getIp());
                result.add(one);
            }
            json.put("aaData", result);

            try {
                out.println(json.toString());
            } catch (Exception e) {
                out.println("[]");
            }

        } catch (Exception e) {
            e.printStackTrace();
            out.println("[]");
        } finally {
            out.close();
            session.close();
        }

    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
